}

type metrics struct {
	sync.Mutex
	LastCheckSuccess time.Time
	LastCheckFailure time.Time
	lastFullMinute   serviceRTTMinuteStats
	currentMinute    serviceRTTMinuteStats
}

func (h *metrics) setConnSuccess(reqStartTime time.Time) {
	h.Lock()
	defer h.Unlock()
	h.LastCheckSuccess = reqStartTime
}

func (h *metrics) setConnFailure(reqStartTime time.Time) {
	h.Lock()
	defer h.Unlock()